The CAP CER 3900PF 16V X7R 0805 is a ceramic capacitor with specific characteristics. It has a capacitance of 3900 pico Farads and an operating voltage of 16 volts. This component follows the X7R classification, indicating it can handle high frequencies while maintaining stable capacitance within certain temperature ranges. The specified dimensions are in metric (2012), and its case size is 0805, which is a standard compact package for surface mount components.